diff --git a/lib/uploadlib.php b/lib/uploadlib.php index 8182c6b7837..314ebc9903e 100644 --- a/lib/uploadlib.php +++ b/lib/uploadlib.php @@ -37,466 +37,16 @@ defined('MOODLE_INTERNAL') || die(); */ class upload_manager { - /** - * Array to hold local copies of stuff in $_FILES - * @var array $files - */ - var $files; - /** - * Holds all configuration stuff - * @var array $config - */ - var $config; - /** - * Keep track of if we're ok - * (errors for each file are kept in $files['whatever']['uploadlog'] - * @var boolean $status - */ - var $status; - /** - * The course this file has been uploaded for. {@link $COURSE} - * (for logging and virus notifications) - * @var course $course - */ - var $course; - /** - * If we're only getting one file. - * (for logging and virus notifications) - * @var string $inputname - */ - var $inputname; - /** - * If we're given silent=true in the constructor, this gets built - * up to hold info about the process. - * @var string $notify - */ - var $notify; - /** * Constructor, sets up configuration stuff so we know how to act. * * Note: destination not taken as parameter as some modules want to use the insertid in the path and we need to check the other stuff first. * - * @uses $CFG - * @param string $inputname If this is given the upload manager will only process the file in $_FILES with this name. - * @param boolean $deleteothers Whether to delete other files in the destination directory (optional, defaults to false) - * @param boolean $handlecollisions Whether to use {@link handle_filename_collision()} or not. (optional, defaults to false) - * @param course $course The course the files are being uploaded for (for logging and virus notifications) {@link $COURSE} - * @param boolean $recoverifmultiple If we come across a virus, or if a file doesn't validate or whatever, do we continue? optional, defaults to true. - * @param int $modbytes Max bytes for this module - this and $course->maxbytes are used to get the maxbytes from {@link get_max_upload_file_size()}. - * @param boolean $silent Whether to notify errors or not. - * @param boolean $allownull Whether we care if there's no file when we've set the input name. - * @param boolean $allownullmultiple Whether we care if there's no files AT ALL when we've got multiples. This won't complain if we have file 1 and file 3 but not file 2, only for NO FILES AT ALL. + * @deprecated since 2.7 - use new file pickers instead + * */ function __construct($inputname='', $deleteothers=false, $handlecollisions=false, $course=null, $recoverifmultiple=false, $modbytes=0, $silent=false, $allownull=false, $allownullmultiple=true) { - global $CFG, $SITE; - - debugging('upload_manager class is deprecated, use new file picker instead', DEBUG_DEVELOPER); - - if (empty($course->id)) { - $course = $SITE; - } - - $this->config = new stdClass(); - $this->config->deleteothers = $deleteothers; - $this->config->handlecollisions = $handlecollisions; - $this->config->recoverifmultiple = $recoverifmultiple; - $this->config->maxbytes = get_max_upload_file_size($CFG->maxbytes, $course->maxbytes, $modbytes); - $this->config->silent = $silent; - $this->config->allownull = $allownull; - $this->files = array(); - $this->status = false; - $this->course = $course; - $this->inputname = $inputname; - if (empty($this->inputname)) { - $this->config->allownull = $allownullmultiple; - } - } - - /** - * Gets all entries out of $_FILES and stores them locally in $files and then - * checks each one against {@link get_max_upload_file_size()} and calls {@link cleanfilename()} - * and scans them for viruses etc. - * @uses $CFG - * @uses $_FILES - * @return boolean - */ - function preprocess_files() { - global $CFG, $OUTPUT; - - foreach ($_FILES as $name => $file) { - $this->status = true; // only set it to true here so that we can check if this function has been called. - if (empty($this->inputname) || $name == $this->inputname) { // if we have input name, only process if it matches. - $file['originalname'] = $file['name']; // do this first for the log. - $this->files[$name] = $file; // put it in first so we can get uploadlog out in print_upload_log. - $this->files[$name]['uploadlog'] = ''; // initialize error log - $this->status = $this->validate_file($this->files[$name]); // default to only allowing empty on multiple uploads. - if (!$this->status && ($this->files[$name]['error'] == 0 || $this->files[$name]['error'] == 4) && ($this->config->allownull || empty($this->inputname))) { - // this shouldn't cause everything to stop.. modules should be responsible for knowing which if any are compulsory. - continue; - } - if ($this->status && !empty($CFG->runclamonupload)) { - $this->status = clam_scan_moodle_file($this->files[$name],$this->course); - } - if (!$this->status) { - if (!$this->config->recoverifmultiple && count($this->files) > 1) { - $a = new stdClass(); - $a->name = $this->files[$name]['originalname']; - $a->problem = $this->files[$name]['uploadlog']; - if (!$this->config->silent) { - echo $OUTPUT->notification(get_string('uploadfailednotrecovering','moodle',$a)); - } - else { - $this->notify .= '
'. get_string('uploadfailednotrecovering','moodle',$a); - } - $this->status = false; - return false; - - } else if (count($this->files) == 1) { - - if (!$this->config->silent and !$this->config->allownull) { - echo $OUTPUT->notification($this->files[$name]['uploadlog']); - } else { - $this->notify .= '
'. $this->files[$name]['uploadlog']; - } - $this->status = false; - return false; - } - } - else { - $newname = clean_filename($this->files[$name]['name']); - if ($newname != $this->files[$name]['name']) { - $a = new stdClass(); - $a->oldname = $this->files[$name]['name']; - $a->newname = $newname; - $this->files[$name]['uploadlog'] .= get_string('uploadrenamedchars','moodle', $a); - } - $this->files[$name]['name'] = $newname; - $this->files[$name]['clear'] = true; // ok to save. - $this->config->somethingtosave = true; - } - } - } - if (!is_array($_FILES) || count($_FILES) == 0) { - return $this->config->allownull; - } - $this->status = true; - return true; // if we've got this far it means that we're recovering so we want status to be ok. - } - - /** - * Validates a single file entry from _FILES - * - * @param object $file The entry from _FILES to validate - * @return boolean True if ok. - */ - function validate_file(&$file) { - if (empty($file)) { - return false; - } - if (!is_uploaded_file($file['tmp_name']) || $file['size'] == 0) { - $file['uploadlog'] .= "\n".$this->get_file_upload_error($file); - return false; - } - if ($file['size'] > $this->config->maxbytes) { - $file['uploadlog'] .= "\n". get_string('uploadedfiletoobig', 'moodle', $this->config->maxbytes); - return false; - } - return true; - } - - /** - * Moves all the files to the destination directory. - * - * @uses $CFG - * @uses $USER - * @param string $destination The destination directory. - * @return boolean status; - */ - function save_files($destination) { - global $CFG, $USER, $OUTPUT; - - if (!$this->status) { // preprocess_files hasn't been run - $this->preprocess_files(); - } - - // if there are no files, bail before we create an empty directory. - if (empty($this->config->somethingtosave)) { - return true; - } - - $savedsomething = false; - - if ($this->status) { - if (!(strpos($destination, $CFG->dataroot) === false)) { - // take it out for giving to make_upload_directory - $destination = substr($destination, strlen($CFG->dataroot)+1); - } - - if ($destination{strlen($destination)-1} == '/') { // strip off a trailing / if we have one - $destination = substr($destination, 0, -1); - } - - if (!make_upload_directory($destination, true)) { - $this->status = false; - return false; - } - - $destination = $CFG->dataroot .'/'. $destination; // now add it back in so we have a full path - - $exceptions = array(); //need this later if we're deleting other files. - - foreach (array_keys($this->files) as $i) { - - if (!$this->files[$i]['clear']) { - // not ok to save - continue; - } - - if ($this->config->handlecollisions) { - $this->handle_filename_collision($destination, $this->files[$i]); - } - if (move_uploaded_file($this->files[$i]['tmp_name'], $destination.'/'.$this->files[$i]['name'])) { - chmod($destination .'/'. $this->files[$i]['name'], $CFG->directorypermissions); - $this->files[$i]['fullpath'] = $destination.'/'.$this->files[$i]['name']; - $this->files[$i]['uploadlog'] .= "\n".get_string('uploadedfile'); - $this->files[$i]['saved'] = true; - $exceptions[] = $this->files[$i]['name']; - $savedsomething=true; - } - } - if ($savedsomething && $this->config->deleteothers) { - $this->delete_other_files($destination, $exceptions); - } - } - if (empty($savedsomething)) { - $this->status = false; - if ((empty($this->config->allownull) && !empty($this->inputname)) || (empty($this->inputname) && empty($this->config->allownullmultiple))) { - echo $OUTPUT->notification(get_string('uploadnofilefound')); - } - return false; - } - return $this->status; - } - - /** - * Wrapper function that calls {@link preprocess_files()} and {@link viruscheck_files()} and then {@link save_files()} - * Modules that require the insert id in the filepath should not use this and call these functions seperately in the required order. - * @parameter string $destination Where to save the uploaded files to. - * @return boolean - */ - function process_file_uploads($destination) { - if ($this->preprocess_files()) { - return $this->save_files($destination); - } - return false; - } - - /** - * Deletes all the files in a given directory except for the files in $exceptions (full paths) - * - * @param string $destination The directory to clean up. - * @param array $exceptions Full paths of files to KEEP. - */ - function delete_other_files($destination, $exceptions=null) { - global $OUTPUT; - $deletedsomething = false; - if ($filestodel = get_directory_list($destination)) { - foreach ($filestodel as $file) { - if (!is_array($exceptions) || !in_array($file, $exceptions)) { - unlink($destination .'/'. $file); - $deletedsomething = true; - } - } - } - if ($deletedsomething) { - if (!$this->config->silent) { - echo $OUTPUT->notification(get_string('uploadoldfilesdeleted')); - } - else { - $this->notify .= '
'. get_string('uploadoldfilesdeleted'); - } - } - } - - /** - * Handles filename collisions - if the desired filename exists it will rename it according to the pattern in $format - * @param string $destination Destination directory (to check existing files against) - * @param object $file Passed in by reference. The current file from $files we're processing. - * @return void - modifies &$file parameter. - */ - function handle_filename_collision($destination, &$file) { - if (!file_exists($destination .'/'. $file['name'])) { - return; - } - - $parts = explode('.', $file['name']); - if (count($parts) > 1) { - $extension = '.'.array_pop($parts); - $name = implode('.', $parts); - } else { - $extension = ''; - $name = $file['name']; - } - - $current = 0; - if (preg_match('/^(.*)_(\d*)$/s', $name, $matches)) { - $name = $matches[1]; - $current = (int)$matches[2]; - } - $i = $current + 1; - - while (!$this->check_before_renaming($destination, $name.'_'.$i.$extension, $file)) { - $i++; - } - $a = new stdClass(); - $a->oldname = $file['name']; - $file['name'] = $name.'_'.$i.$extension; - $a->newname = $file['name']; - $file['uploadlog'] .= "\n". get_string('uploadrenamedcollision','moodle', $a); - } - - /** - * This function checks a potential filename against what's on the filesystem already and what's been saved already. - * @param string $destination Destination directory (to check existing files against) - * @param string $nametocheck The filename to be compared. - * @param object $file The current file from $files we're processing. - * return boolean - */ - function check_before_renaming($destination, $nametocheck, $file) { - if (!file_exists($destination .'/'. $nametocheck)) { - return true; - } - if ($this->config->deleteothers) { - foreach ($this->files as $tocheck) { - // if we're deleting files anyway, it's not THIS file and we care about it and it has the same name and has already been saved.. - if ($file['tmp_name'] != $tocheck['tmp_name'] && $tocheck['clear'] && $nametocheck == $tocheck['name'] && $tocheck['saved']) { - $collision = true; - } - } - if (!$collision) { - return true; - } - } - return false; - } - - /** - * ? - * - * @param object $file Passed in by reference. The current file from $files we're processing. - * @return string - */ - function get_file_upload_error(&$file) { - - switch ($file['error']) { - case 0: // UPLOAD_ERR_OK - if ($file['size'] > 0) { - $errmessage = get_string('uploadproblem', $file['name']); - } else { - $errmessage = get_string('uploadnofilefound'); /// probably a dud file name - } - break; - - case 1: // UPLOAD_ERR_INI_SIZE - $errmessage = get_string('uploadserverlimit'); - break; - - case 2: // UPLOAD_ERR_FORM_SIZE - $errmessage = get_string('uploadformlimit'); - break; - - case 3: // UPLOAD_ERR_PARTIAL - $errmessage = get_string('uploadpartialfile'); - break; - - case 4: // UPLOAD_ERR_NO_FILE - $errmessage = get_string('uploadnofilefound'); - break; - - // Note: there is no error with a value of 5 - - case 6: // UPLOAD_ERR_NO_TMP_DIR - $errmessage = get_string('uploadnotempdir'); - break; - - case 7: // UPLOAD_ERR_CANT_WRITE - $errmessage = get_string('uploadcantwrite'); - break; - - case 8: // UPLOAD_ERR_EXTENSION - $errmessage = get_string('uploadextension'); - break; - - default: - $errmessage = get_string('uploadproblem', $file['name']); - } - return $errmessage; - } - - /** - * prints a log of everything that happened (of interest) to each file in _FILES - * @param $return - optional, defaults to false (log is echoed) - */ - function print_upload_log($return=false,$skipemptyifmultiple=false) { - $str = ''; - foreach (array_keys($this->files) as $i => $key) { - if (count($this->files) > 1 && !empty($skipemptyifmultiple) && $this->files[$key]['error'] == 4) { - continue; - } - $str .= ''. get_string('uploadfilelog', 'moodle', $i+1) .' ' - .((!empty($this->files[$key]['originalname'])) ? '('.$this->files[$key]['originalname'].')' : '') - .' :'. nl2br($this->files[$key]['uploadlog']) .'
'; - } - if ($return) { - return $str; - } - echo $str; - } - - /** - * If we're only handling one file (if inputname was given in the constructor) this will return the (possibly changed) filename of the file. - @return boolean - */ - function get_new_filename() { - if (!empty($this->inputname) and count($this->files) == 1 and $this->files[$this->inputname]['error'] != 4) { - return $this->files[$this->inputname]['name']; - } - return false; - } - - /** - * If we're only handling one file (if input name was given in the constructor) this will return the full path to the saved file. - * @return boolean - */ - function get_new_filepath() { - if (!empty($this->inputname) and count($this->files) == 1 and $this->files[$this->inputname]['error'] != 4) { - return $this->files[$this->inputname]['fullpath']; - } - return false; - } - - /** - * If we're only handling one file (if inputname was given in the constructor) this will return the ORIGINAL filename of the file. - * @return boolean - */ - function get_original_filename() { - if (!empty($this->inputname) and count($this->files) == 1 and $this->files[$this->inputname]['error'] != 4) { - return $this->files[$this->inputname]['originalname']; - } - return false; - } - - /** - * This function returns any errors wrapped up in red. - * @return string - */ - function get_errors() { - if (!empty($this->notify)) { - return '

'. $this->notify .'

'; - } else { - return null; - } + throw new coding_exception('upload_manager class can not be used any more, please use file picker instead'); } } @@ -514,64 +64,9 @@ UPLOAD_PRINT_FORM_FRAGMENT DOESN'T REALLY BELONG IN THE CLASS BUT CERTAINLY IN T * * @deprecated since 2.7 - to be removed together with the upload_manager above * - * @param string $file Full path to the file - * @param int $userid If not used, defaults to $USER->id (there in case called from cron) - * @param boolean $basiconly Admin level reporting or user level reporting. - * @return string Details of what the function did. */ function clam_handle_infected_file($file, $userid=0, $basiconly=false) { - global $CFG, $USER; - - debugging('clam_handle_infected_file() is not supposed to be used, the files are now scanned in file picker', DEBUG_DEVELOPER); - - if ($USER && !$userid) { - $userid = $USER->id; - } - $delete = true; - $notice = ''; - if (file_exists($CFG->quarantinedir) && is_dir($CFG->quarantinedir) && is_writable($CFG->quarantinedir)) { - $now = date('YmdHis'); - if (rename($file, $CFG->quarantinedir .'/'. $now .'-user-'. $userid .'-infected')) { - $delete = false; - if ($basiconly) { - $notice .= "\n". get_string('clammovedfilebasic'); - } - else { - $notice .= "\n". get_string('clammovedfile', 'moodle', $CFG->quarantinedir.'/'. $now .'-user-'. $userid .'-infected'); - } - } - else { - if ($basiconly) { - $notice .= "\n". get_string('clamdeletedfile'); - } - else { - $notice .= "\n". get_string('clamquarantinedirfailed', 'moodle', $CFG->quarantinedir); - } - } - } - else { - if ($basiconly) { - $notice .= "\n". get_string('clamdeletedfile'); - } - else { - $notice .= "\n". get_string('clamquarantinedirfailed', 'moodle', $CFG->quarantinedir); - } - } - if ($delete) { - if (unlink($file)) { - $notice .= "\n". get_string('clamdeletedfile'); - } - else { - if ($basiconly) { - // still tell the user the file has been deleted. this is only for admins. - $notice .= "\n". get_string('clamdeletedfile'); - } - else { - $notice .= "\n". get_string('clamdeletedfilefailed'); - } - } - } - return $notice; + throw new coding_exception('clam_handle_infected_file() can not be used any more, please use file picker instead'); } /** @@ -579,90 +74,9 @@ function clam_handle_infected_file($file, $userid=0, $basiconly=false) { * * @deprecated since 2.7 - to be removed together with the upload_manager above * - * @param mixed $file The file to scan from $files. or an absolute path to a file. - * @param stdClass $course - * @return int 1 if good, 0 if something goes wrong (opposite from actual error code from clam) */ function clam_scan_moodle_file(&$file, $course) { - global $CFG, $USER; - - debugging('clam_scan_moodle_file() is not supposed to be used, the files are now scanned in file picker', DEBUG_DEVELOPER); - - if (is_array($file) && is_uploaded_file($file['tmp_name'])) { // it's from $_FILES - $appendlog = true; - $fullpath = $file['tmp_name']; - } - else if (file_exists($file)) { // it's a path to somewhere on the filesystem! - $fullpath = $file; - } - else { - return false; // erm, what is this supposed to be then, huh? - } - - $CFG->pathtoclam = trim($CFG->pathtoclam); - - if (!$CFG->pathtoclam || !file_exists($CFG->pathtoclam) || !is_executable($CFG->pathtoclam)) { - $newreturn = 1; - $notice = get_string('clamlost', 'moodle', $CFG->pathtoclam); - if ($CFG->clamfailureonupload == 'actlikevirus') { - $notice .= "\n". get_string('clamlostandactinglikevirus'); - $notice .= "\n". clam_handle_infected_file($fullpath); - $newreturn = false; - } - clam_message_admins($notice); - if ($appendlog) { - $file['uploadlog'] .= "\n". get_string('clambroken'); - $file['clam'] = 1; - } - return $newreturn; // return 1 if we're allowing clam failures - } - - $cmd = $CFG->pathtoclam .' '. $fullpath ." 2>&1"; - - // before we do anything we need to change perms so that clamscan can read the file (clamdscan won't work otherwise) - chmod($fullpath, $CFG->directorypermissions); - - exec($cmd, $output, $return); - - - switch ($return) { - case 0: // glee! we're ok. - return 1; // translate clam return code into reasonable return code consistent with everything else. - case 1: // bad wicked evil, we have a virus. - $info = new stdClass(); - if (!empty($course)) { - $info->course = format_string($course->fullname, true, array('context' => context_course::instance($course->id))); - } - else { - $info->course = 'No course'; - } - $info->user = fullname($USER); - $notice = get_string('virusfound', 'moodle', $info); - $notice .= "\n\n". implode("\n", $output); - $notice .= "\n\n". clam_handle_infected_file($fullpath); - clam_message_admins($notice); - if ($appendlog) { - $info->filename = $file['originalname']; - $file['uploadlog'] .= "\n". get_string('virusfounduser', 'moodle', $info); - $file['virus'] = 1; - } - return false; // in this case, 0 means bad. - default: - // error - clam failed to run or something went wrong - $notice = get_string('clamfailed', 'moodle', get_clam_error_code($return)); - $notice .= "\n\n". implode("\n", $output); - $newreturn = true; - if ($CFG->clamfailureonupload == 'actlikevirus') { - $notice .= "\n". clam_handle_infected_file($fullpath); - $newreturn = false; - } - clam_message_admins($notice); - if ($appendlog) { - $file['uploadlog'] .= "\n". get_string('clambroken'); - $file['clam'] = 1; - } - return $newreturn; // return 1 if we're allowing failures. - } + throw new coding_exception('clam_scan_moodle_file() can not be used any more, please use file picker instead'); } /**